CN103289529B - A kind of unglazed type powdery paints - Google Patents
A kind of unglazed type powdery paints Download PDFInfo
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- CN103289529B CN103289529B CN201310215329.5A CN201310215329A CN103289529B CN 103289529 B CN103289529 B CN 103289529B CN 201310215329 A CN201310215329 A CN 201310215329A CN 103289529 B CN103289529 B CN 103289529B
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Abstract
The invention discloses a kind of unglazed type powdery paints, it is characterized in that it is made up of the raw material of following weight parts: epoxy resin E14? 100-110, dimethylaminopropylamine 15-20, diethylenetriamine 10-15, delustring barium sulfate 10-12, titanium dioxide 20-24, modified filler 10-15, mylar 3-5, polyethyl acrylate 1-2, 2-benzylimidazoline 2-3, sodium dihydrogen phosphate 1-2, benzoic acid MEA 1-3, diethylammonium diethyldithiocarbamate 2-3, zinc diethyl dithiocarbamate 2-3, aluminium hydroxide 3-4, antioxidant 1010? 0.8-1, 1, two (triethoxy is silica-based) ethane 0.6-1 of 2-, powdery paints hardness, intensity that the present invention produces are high, wearability, weatherability and ageing resistance are good, film is tough and tensile, resistance to acids and bases, pliability are strong, and the modified filler adding has improved dispersiveness and the mobility of mixture systems, in powdery paints, easily disperses, good with epoxy resin compatibility, the rear melting time of mixing is short, can also reduce the density of powdery paints, improves powder utilization, increase spray area, reduce production costs.
Description
Technical field
The present invention relates generally to a kind of powdery paints, relates in particular to a kind of unglazed type powdery paints.
Background technology
Epoxy powder coating is with strong, the high temperature resistant and excellent electrical insulation capability of its bonding force, be widely used in household electrical appliances, the vehicles, the fields such as hardware machinery, be one of of paramount importance coating type in powdery paints, epoxide powder coating is generally made up of epoxy resin, curing agent, pigment, filler and auxiliary agent. Epoxy resin is the base-material in powdery paints, is important film forming matter; Curing agent reacts with epoxy resin, makes its polymerization crosslinking, is indispensable component in powder coating; Pigment, filler, auxiliary agent are the important component in epoxide powder coating formula, they add the physics and chemistry character that can effectively improve epoxide powder coating. Wherein good filler plays skeleton function in powdery paints, strengthens film performance, also can reduce the production cost of powdery paints, can also improve powder utilization and the spray area etc. of powder.
Summary of the invention
The object of the invention is exactly for a kind of hardness powdery paints is provided.
The present invention is achieved by the following technical solutions:
A kind of unglazed type powdery paints, it is made up of the raw material of following weight parts:
Epoxy resin E14100-110, dimethylaminopropylamine 15-20, diethylenetriamine 10-15, delustring barium sulfate 10-12, titanium dioxide 20-24, modified filler 10-15, mylar 3-5, polyethyl acrylate 1-2,2-benzylimidazoline 2-3, sodium dihydrogen phosphate 1-2, benzoic acid MEA 1-3, diethylammonium diethyldithiocarbamate 2-3, zinc diethyl dithiocarbamate 2-3, aluminium hydroxide 3-4, antioxidant 1010 0.8-1,1, two (triethoxy is silica-based) ethane 0.6-1 of 2-;
Described modified filler is made up of the raw material of following weight parts:
Quick lime 90-100, stearic acid 30-50, magnesium chloride 3-5, b diammonium edta 2-3, sodium phosphate trimer 2-4,1, two (triethoxy is silica-based) ethane 1-2 of 2-, aminopropyl triethoxysilane 1-2, sorbitan monooleate 1-3, Sodium Polyacrylate 3-4, di-t-butyl peroxide 0.8-1, ethoxylated dodecyl alcohol 0.5-1, peregal o1-2, diisobutyl phthalate 1-2.
The preparation method of described modified filler comprises the following steps:
(1) be 1 by quick lime in mass ratio with boiling water: the ratio of 8-10 is mixed, digestion 4-5h, through the resonance screens filter cleaner of 180 μ m, more further removes the gred through cyclone hydraulic separators, obtains Ca (OH)2Suspension;
(2) by above-mentioned Ca (OH)2Two parts of the weight such as suspension is divided into, a copy of it adds b diammonium edta, magnesium chloride, the sodium phosphate trimer, 1 of above-mentioned weight portion, and two (triethoxy the is silica-based) ethane of 2-, moves in carbonization reactor after stirring, and passes into from CO2The pure CO of steel cylinder2With the air from air compressor machine, be mixed into containing volume fraction 25-30%CO2Gas react, in the time of pH=6.5-7.0, stop reaction, add above-mentioned sorbitan monooleate, stir to obtain a liquid;
(3) another part of Ca (OH)2Suspension adds the aminopropyl triethoxysilane of above-mentioned weight portion, and agitating heating 20-30 minute at 90-110 DEG C, obtains b liquid;
(4) stearic acid of above-mentioned weight portion is heated to 60-70 DEG C, adds ethoxylated dodecyl alcohol, the peregal o of above-mentioned weight portion, rising temperature is as for 80-85 DEG C, constant temperature stirs 1-2 hour, under stirring condition, slowly add above-mentioned b liquid, after interpolation, continue to stir 1-2 hour, obtain c material;
(5) a material, c are expected to mix, add the each raw material of residue, high speed 1500-2000 rev/min of centrifugal mixer 20-30 minute, dries, and is ground into superfines, is described modifier;
A preparation method for unglazed type powdery paints, comprises the following steps:
(1) above-mentioned each raw material except polyethyl acrylate is mixed and is placed in high-speed mixer mixing 8-10 minute;
(2) melt extrude feeding section temperature 30-40 DEG C, melt zone temperature 95-105 DEG C, discharging section temperature 100-110 DEG C by screw extruder;
(3) fused materials is through tablet press machine compressing tablet, controls thickness at 1-3mm, sends into crushing and classification in flour mill through fragmentation, isolates fine powder, foreign material etc. by cyclone separator, and with powder sieving from going out product, powder sieve is 50-60 order;
(4) with above-mentioned polyethyl acrylate mix and blend, after sieving, make finished product.
Advantage of the present invention is:
Powdery paints hardness, intensity that the present invention produces are high, wearability, weatherability and ageing resistance are good, film is tough and tensile, resistance to acids and bases, pliability are strong, the modified filler adding has improved dispersiveness and the mobility of mixture systems, in powdery paints, easily disperse, good with epoxy resin compatibility, after mixing, the melting time is short, can also reduce the density of powdery paints, improve powder utilization, increase spray area, reduce production costs, the titanium dioxide adding, the combination property that delustring barium sulfate has improved glossless powdered coating.
Detailed description of the invention
Embodiment 1
A kind of unglazed type powdery paints, it by following weight parts (kilogram) raw material form:
Epoxy resin E14110, dimethylaminopropylamine 20, diethylenetriamine 15, delustring barium sulfate 12, titanium dioxide 24, modified filler 15, mylar 5, polyethyl acrylate 2,2-benzylimidazoline 3, sodium dihydrogen phosphate 2, benzoic acid MEA 3, diethylammonium diethyldithiocarbamate 3, zinc diethyl dithiocarbamate 3, aluminium hydroxide 4, antioxidant 1010 0.8,1, two (triethoxy the is silica-based) ethane 0.6 of 2-;
Described modified filler is made up of the raw material of following weight parts:
Quick lime 100, stearic acid 50, magnesium chloride 5, b diammonium edta 3, sodium phosphate trimer 4,1, two (triethoxy the is silica-based) ethane 2 of 2-, aminopropyl triethoxysilane 2, sorbitan monooleate 3, Sodium Polyacrylate 4, di-t-butyl peroxide 0.8, ethoxylated dodecyl alcohol 0.5, peregal o2, diisobutyl phthalate 2;
The preparation method of described modified filler comprises the following steps:
(1) ratio that is 1: 10 in mass ratio by quick lime and boiling water is mixed, and digestion 5h, through the resonance screens filter cleaner of 180 μ m, more further removes the gred through cyclone hydraulic separators, obtains Ca (OH)2Suspension;
(2) by above-mentioned Ca (OH)2Two parts of the weight such as suspension is divided into, a copy of it adds b diammonium edta, magnesium chloride, the sodium phosphate trimer, 1 of above-mentioned weight portion, and two (triethoxy the is silica-based) ethane of 2-, moves in carbonization reactor after stirring, and passes into from CO2The pure CO of steel cylinder2With the air from air compressor machine, be mixed into containing volume fraction 30%CO2Gas react, in the time of pH=7.0, stop reaction, add above-mentioned sorbitan monooleate, stir to obtain a liquid;
(3) another part of Ca (OH)2Suspension adds the aminopropyl triethoxysilane of above-mentioned weight portion, and at 90-110 DEG C, agitating heating 30 minutes, obtains b liquid;
(4) stearic acid of above-mentioned weight portion is heated to 70 DEG C, adds ethoxylated dodecyl alcohol, the peregal o of above-mentioned weight portion, rising temperature is as for 85 DEG C, constant temperature stirs 2 hours, under stirring condition, slowly add above-mentioned b liquid, after interpolation, continue to stir 2 hours, obtain c material;
(5) a material, c are expected to mix, add the each raw material of residue, 2000 revs/min of centrifugal mixer 20-30 minute at a high speed, dry, and are ground into superfines, are described modifier.
A preparation method for unglazed type powdery paints, comprises the following steps:
(1) above-mentioned each raw material except polyethyl acrylate is mixed and is placed in high-speed mixer mixing 10 minutes;
(2) melt extrude 40 DEG C of feeding section temperature, 105 DEG C of melt zone temperature, 110 DEG C of discharging section temperature by screw extruder;
(3) fused materials is through tablet press machine compressing tablet, controls thickness at 3mm, sends into crushing and classification in flour mill through fragmentation, isolates fine powder, foreign material etc. by cyclone separator, and with powder sieving from going out product, it is 60 orders that powder sieves;
(4) with above-mentioned polyethyl acrylate mix and blend, after sieving, make finished product.
Performance test:
Appearance of film: smooth smooth, without shrinkage cavity;
Adhesion 1 grade;
Resistance to impact strength >=55Kgcm;
Pencil hardness test: 2H is without scuffing;
Bendability: the bending of 4D diameter, within 15 seconds, complete, in outer radius without macroscopic crackle;
Resist chemical (45d, 24 DEG C, saturated calcium hydroxide): coating is without foaming, softening, pore-free, and viscosity is unchanged;
Resistance to water: the steel plate of spraying powdery paints of the present invention is vertically placed in High pressure steam sterilizer, keep the area of steel plate 80% to soak in the distilled water that hangs over boiling, under the pressure of maintenance 0.1MPa, continue to place 80h, after taking-up, with hair-dryer, surface water is dried up, coating without bubbling, softening, variable color, the phenomenon such as get rusty, viscosity is also unchanged;
Glossiness (60 DEG C) :≤10%.
Claims (1)
1. a unglazed type powdery paints, is characterized in that it is made up of the raw material of following weight parts:
Epoxy resin E14100-110, dimethylaminopropylamine 15-20, diethylenetriamine 10-15, delustring barium sulfate 10-12, titanium dioxide 20-24, modified filler 10-15, mylar 3-5, polyethyl acrylate 1-2,2-benzylimidazoline 2-3, sodium dihydrogen phosphate 1-2, benzoic acid MEA 1-3, diethylammonium diethyldithiocarbamate 2-3, zinc diethyl dithiocarbamate 2-3, aluminium hydroxide 3-4, antioxidant 1010 0.8-1,1, two (triethoxy is silica-based) ethane 0.6-1 of 2-;
Described modified filler is made up of the raw material of following weight parts:
Quick lime 90-100, stearic acid 30-50, magnesium chloride 3-5, b diammonium edta 2-3, sodium phosphate trimer 2-4,1, two (triethoxy is silica-based) ethane 1-2 of 2-, aminopropyl triethoxysilane 1-2, sorbitan monooleate 1-3, Sodium Polyacrylate 3-4, di-t-butyl peroxide 0.8-1, ethoxylated dodecyl alcohol 0.5-1, peregal 01-2, diisobutyl phthalate 1-2;
The preparation method of described modified filler comprises the following steps:
(1) be 1 by quick lime in mass ratio with boiling water: the ratio of 8-10 is mixed, digestion 4-5h, through the resonance screens filter cleaner of 180 μ m, more further removes the gred through cyclone hydraulic separators, obtains Ca (OH)2Suspension;
(2) by above-mentioned Ca (OH)2Two parts of the weight such as suspension is divided into, a copy of it adds b diammonium edta, magnesium chloride, the sodium phosphate trimer, 1 of above-mentioned weight portion, and two (triethoxy the is silica-based) ethane of 2-, moves in carbonization reactor after stirring, and passes into from CO2The pure CO of steel cylinder2With the air from air compressor machine, be mixed into containing volume fraction 25-30%CO2Gas react, in the time of pH=6.5-7.0, stop reaction, add above-mentioned sorbitan monooleate, stir to obtain a liquid;
(3) another part of Ca (OH)2Suspension adds the aminopropyl triethoxysilane of above-mentioned weight portion, and agitating heating 20-30 minute at 90-110 DEG C, obtains b liquid;
(4) stearic acid of above-mentioned weight portion is heated to 60-70 DEG C, adds ethoxylated dodecyl alcohol, the peregal 0 of above-mentioned weight portion, rising temperature is to 80-85 DEG C, constant temperature stirs 1-2 hour, under stirring condition, slowly add above-mentioned b liquid, after interpolation, continue to stir 1-2 hour, obtain c material;
(5) a material, c are expected to mix, add the each raw material of residue, high speed 1500-2000 rev/min of centrifugal mixer 20-30 minute, dries, and is ground into superfines, is described modified filler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310215329.5A CN103289529B (en) | 2013-05-31 | 2013-05-31 | A kind of unglazed type powdery paints |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310215329.5A CN103289529B (en) | 2013-05-31 | 2013-05-31 | A kind of unglazed type powdery paints |
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| CN103289529A CN103289529A (en) | 2013-09-11 |
| CN103289529B true CN103289529B (en) | 2016-05-11 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103603205B (en) * | 2013-10-24 | 2016-01-13 | 安徽柏拉图涂层织物有限公司 | A kind of mat fabric coating |
| CN112175471B (en) * | 2020-09-30 | 2021-11-23 | 安徽省华安进出口有限公司 | Polyacrylic resin/TGIC system extinction powder coating containing anhydride group functionality |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101225279A (en) * | 2008-01-31 | 2008-07-23 | 宁波市派特勒粉末涂料有限公司 | Plane aluminium powder coating |
| CN101225278A (en) * | 2008-01-31 | 2008-07-23 | 宁波市派特勒粉末涂料有限公司 | Anion powder coating |
| CN101665652A (en) * | 2009-07-30 | 2010-03-10 | 老虎粉末涂料制造（太仓）有限公司 | Powder coating with antibacterial function and preparation method and application thereof |
| CN101747826A (en) * | 2009-11-27 | 2010-06-23 | 广州擎天实业有限公司 | Low temperature curing epoxy low-gloss powder coating and preparation method thereof |
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2013
- 2013-05-31 CN CN201310215329.5A patent/CN103289529B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101225279A (en) * | 2008-01-31 | 2008-07-23 | 宁波市派特勒粉末涂料有限公司 | Plane aluminium powder coating |
| CN101225278A (en) * | 2008-01-31 | 2008-07-23 | 宁波市派特勒粉末涂料有限公司 | Anion powder coating |
| CN101665652A (en) * | 2009-07-30 | 2010-03-10 | 老虎粉末涂料制造（太仓）有限公司 | Powder coating with antibacterial function and preparation method and application thereof |
| CN101747826A (en) * | 2009-11-27 | 2010-06-23 | 广州擎天实业有限公司 | Low temperature curing epoxy low-gloss powder coating and preparation method thereof |
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